| /* |
| * Copyright 2015, gRPC Authors All rights reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package io.grpc.internal; |
| |
| import static java.util.Arrays.asList; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| @RunWith(JUnit4.class) |
| public class SerializeReentrantCallsDirectExecutorTest { |
| |
| SerializeReentrantCallsDirectExecutor executor; |
| |
| @Before |
| public void setup() { |
| executor = new SerializeReentrantCallsDirectExecutor(); |
| } |
| |
| @Test public void reentrantCallsShouldBeSerialized() { |
| final List<Integer> callOrder = new ArrayList<Integer>(4); |
| executor.execute(new Runnable() { |
| @Override |
| public void run() { |
| executor.execute(new Runnable() { |
| @Override |
| public void run() { |
| executor.execute(new Runnable() { |
| @Override public void run() { |
| callOrder.add(3); |
| } |
| }); |
| |
| callOrder.add(2); |
| |
| executor.execute(new Runnable() { |
| @Override public void run() { |
| callOrder.add(4); |
| } |
| }); |
| } |
| }); |
| callOrder.add(1); |
| } |
| }); |
| |
| assertEquals(asList(1, 2, 3, 4), callOrder); |
| } |
| |
| @Test |
| public void exceptionShouldNotCancelQueuedTasks() { |
| final AtomicBoolean executed1 = new AtomicBoolean(); |
| final AtomicBoolean executed2 = new AtomicBoolean(); |
| executor.execute(new Runnable() { |
| @Override |
| public void run() { |
| executor.execute(new Runnable() { |
| @Override |
| public void run() { |
| executed1.set(true); |
| throw new RuntimeException("Two"); |
| } |
| }); |
| executor.execute(new Runnable() { |
| @Override |
| public void run() { |
| executed2.set(true); |
| } |
| }); |
| |
| throw new RuntimeException("One"); |
| } |
| }); |
| |
| assertTrue(executed1.get()); |
| assertTrue(executed2.get()); |
| } |
| |
| @Test(expected = NullPointerException.class) |
| public void executingNullShouldFail() { |
| executor.execute(null); |
| } |
| |
| @Test |
| public void executeCanBeRepeated() { |
| final List<Integer> executes = new ArrayList<Integer>(); |
| executor.execute(new Runnable() { |
| @Override |
| public void run() { |
| executes.add(1); |
| } |
| }); |
| executor.execute(new Runnable() { |
| @Override |
| public void run() { |
| executes.add(2); |
| } |
| }); |
| |
| assertEquals(asList(1,2), executes); |
| } |
| |
| @Test |
| public void interruptDoesNotAffectExecution() { |
| final AtomicInteger callsExecuted = new AtomicInteger(); |
| |
| Thread.currentThread().interrupt(); |
| |
| executor.execute(new Runnable() { |
| @Override |
| public void run() { |
| Thread.currentThread().interrupt(); |
| callsExecuted.incrementAndGet(); |
| } |
| }); |
| |
| executor.execute(new Runnable() { |
| @Override |
| public void run() { |
| callsExecuted.incrementAndGet(); |
| } |
| }); |
| |
| // clear interrupted flag |
| Thread.interrupted(); |
| } |
| } |